Abstract:
BACKGROUND:Evaluation of online health interventions should investigate the function of theoretical mechanisms of behavior change in this new milieu. OBJECTIVES:To expand our understanding of how Web-based interventions influence behavior, we examined how changes at 6 months in participants' psychosocial characteristics contributed to improvements at 16 months in nutrition, physical activity (PA), and weight management as a result of the online, social cognitive theory (SCT)-based Guide to Health intervention (WB-GTH). METHODS:We conducted recruitment, enrollment, and assessments online with 272 of 655 (41.5%) participants enrolling in WB-GTH who also completed 6- and 16-month follow-up assessments. Participants' mean age was 43.68 years, 86% were female, 92% were white, mean education was 17.45 years, median income was US $85,000, 84% were overweight or obese, and 73% were inactive. Participants received one of two equally effective versions of WB-GTH. Structural equation analysis of theoretical models evaluated whether psychosocial constructs targeted by WB-GTH contributed to observed health behavior changes. RESULTS:The longitudinal model provided good fit to the data (root mean square error of approximation <.05). Participants' weight loss at 16 months was predicted by improvements in their PA (beta(total) = -.34, P = .01), consumption of fruits and vegetables (F&V) (beta(total) = -.20, P = .03) and calorie intake (beta(total) = .15, P = .04). Improvements at 6 months in PA self-efficacy (beta(total) = -.10, P = .03), PA self-regulation (beta(total) = -.15, P = .01), nutrition social support (beta(total) = -.08, P = .03), and nutrition outcome expectations (beta(total) = .08, P = .03) also contributed to weight loss. WB-GTH users with increased social support (beta(total) = .26, P = .04), self-efficacy (beta(total) = .30, P = .01), and self-regulation (beta(total) = .45, P = .004) also exhibited improved PA levels. Decreased fat and sugar consumption followed improved social support (beta(total) = -.10, P = .02), outcome expectations (beta(total) = .15, P = .007), and self-regulation (beta(total) = -.14, P = .008). Decreased calorie intake followed increased social support (beta(total) = -.30, P < .001). Increased F&V intake followed improved self-efficacy (beta(total) = .20, P = .01), outcome expectations (beta(total) = -.29, P = .002), and self-regulation (beta(total) = .27, P = .009). Theorized indirect effects within SCT variables were also supported. CONCLUSIONS:The WB-GTH influenced behavior and weight loss in a manner largely consistent with SCT. Improving social support, self-efficacy, outcome expectations, and self-regulation, in varying combinations, led to healthier diet and exercise habits and concomitant weight loss. High initial levels of self-efficacy may be characteristic of Web-health users interested in online interventions and may alter the function of SCT in these programs. Researchers may find that, although increased self-efficacy enhances program outcomes, participants whose self-efficacy is tempered by online interventions may still benefit. TRIAL REGISTRATION:Clinicaltrials.gov NCT00128570; http://clinicaltrials.gov/ct2/show/NCT00128570 (Archived by WebCite at http://www.webcitation.org/5vgcygBII).
journal_name
J Med Internet Resjournal_title
Journal of medical Internet researchauthors
Anderson-Bill ES,Winett RA,Wojcik JR,Winett SGdoi
10.2196/jmir.1614subject
Has Abstractpub_date
2011-03-04 00:00:00pages
e27issue
1eissn
1439-4456issn
1438-8871pii
v13i1e27journal_volume
13pub_type
杂志文章,随机对照试验abstract:BACKGROUND:There are few studies on the role of technology delivery mode on health intervention outcomes. Furthermore, the opportunity to examine potential mode effects on a program that is theory-based and integrates principles of communication and decision-making science to influence sexual and reproductive health ou...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/10398
更新日期:2018-08-29 00:00:00
abstract:BACKGROUND:Mobile health (mHealth) technology holds promise for promoting health education and reducing health disparities and inequalities in underserved populations. However, little research has been done to develop mHealth interventions for family caregivers of people with dementia, particularly those in rural Hispa...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/11682
更新日期:2018-12-10 00:00:00
abstract:BACKGROUND:Spouses and partners ("partners") of women at-risk for ("previvors") and surviving with hereditary breast/ovarian cancer are a primary source of support within their families. Yet, little is known about partners' needs for psychoeducational intervention to enhance their cancer risk knowledge, coping, and sup...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.1847
更新日期:2012-01-18 00:00:00
abstract:BACKGROUND:Precision medicine has resulted in increasing complexity in the treatment of cancer. Web-based educational materials can help address the needs of oncology health care professionals seeking to understand up-to-date treatment strategies. OBJECTIVE:This study aimed to assess learning styles of oncology health...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.7506
更新日期:2017-07-25 00:00:00
abstract:BACKGROUND:Today, college students are dealing with depression at some of the highest rates in decades. As the primary mental health service provider, university counseling centers are limited in their capacity and efficiency to provide mental health care due to time constraints and reliance on students' self-reports. ...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/10139
更新日期:2018-07-17 00:00:00
abstract:BACKGROUND:The electronic cigarette (e-cigarette) industry has grown in size and organizational complexity in recent years, most notably with the entry of major tobacco companies in 2012 and the proliferation of vape shops. Many brands maintain retail websites that present e-cigarette marketing claims and sell directly...
journal_title:Journal of medical Internet research
pub_type: 历史文章,杂志文章
doi:10.2196/jmir.8550
更新日期:2018-03-12 00:00:00
abstract:BACKGROUND:The traditional vertical system of sharing information from sources of scientific authority passed down to the public through local health authorities and clinicians risks being made obsolete by emerging technologies that facilitate rapid horizontal information sharing. The rise of Public Health 2.0 requires...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.2982
更新日期:2014-01-14 00:00:00
abstract::Digital health is an advancing phenomenon in modern health care systems. Currently, numerous stakeholders in various countries are evaluating the potential benefits of digital health solutions at the individual, population, and/or organizational levels. Additionally, driving factors are being created from the customer...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.9732
更新日期:2018-05-18 00:00:00
abstract:BACKGROUND:Dementia is a major cause of disability and dependency in older adults worldwide. It is often accompanied by general psychological distress, such as depression and anxiety symptoms, among caregivers of people with dementia (PwD). The physical and mental health of the caregiver is a prerequisite and a promise...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,meta分析,评审
doi:10.2196/13415
更新日期:2019-05-06 00:00:00
abstract:BACKGROUND:Pollen forecasts are highly valuable for allergen avoidance and thus raising the quality of life of persons concerned by pollen allergies. They are considered as valuable free services for the public. Careful scientific evaluation of pollen forecasts in terms of accurateness and reliability has not been avai...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.7426
更新日期:2017-05-08 00:00:00
abstract:BACKGROUND:Data coordination across multiple health care facilities has become increasingly important for many emerging health care applications. Distrust has been recognized as a key barrier to the success of such applications. Leveraging blockchain technology could provide potential solutions tobuild trust between da...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/19029
更新日期:2020-07-27 00:00:00
abstract:BACKGROUND:Conversational agents (CAs) are systems that mimic human conversations using text or spoken language. Their widely used examples include voice-activated systems such as Apple Siri, Google Assistant, Amazon Alexa, and Microsoft Cortana. The use of CAs in health care has been on the rise, but concerns about th...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/15823
更新日期:2020-02-09 00:00:00
abstract:BACKGROUND:Over the last two decades, the number of studies on electronic symptom reporting has increased greatly. However, the field is very heterogeneous: the choices of patient groups, health service innovations, and research targets seem to involve a broad range of foci. To move the field forward, it is necessary t...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,评审
doi:10.2196/jmir.2214
更新日期:2012-10-03 00:00:00
abstract:BACKGROUND:The Internet offers diverse opportunities for disease management, through information websites (Health 1.0) and interactive applications such as peer support forums, online consults, and insight into electronic medical records (Health 2.0). However, various skills are required to benefit from Health 1.0 and ...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.2428
更新日期:2013-02-11 00:00:00
abstract:BACKGROUND:The coronavirus disease (COVID-19) pandemic has resulted in significant morbidity and mortality; large numbers of patients require intensive care, which is placing strain on health care systems worldwide. There is an urgent need for a COVID-19 disease severity assessment that can assist in patient triage and...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/22033
更新日期:2020-08-24 00:00:00
abstract:BACKGROUND:Understanding public behavioral responses to the coronavirus disease (COVID-19) epidemic and the accompanying infodemic is crucial to controlling the epidemic. OBJECTIVE:The aim of this study was to assess real-time public awareness and behavioral responses to the COVID-19 epidemic across 12 selected countr...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/21143
更新日期:2020-08-03 00:00:00
abstract:BACKGROUND:Advance care planning allows patients to articulate their future care preferences should they no longer be able to make decisions on their own. Early advance care planning in outpatient settings provides benefits such as less aggressive care and fewer hospitalizations, yet it is underutilized due to barriers...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.9203
更新日期:2018-06-26 00:00:00
abstract:BACKGROUND:Internet search engines are increasingly being utilized as the first port of call for medical information by the public. The prevalence of allergies in developed countries has risen steadily over time. There exists significant variability in the quality of health-related information available on the web. Ina...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/16763
更新日期:2020-05-13 00:00:00
abstract:BACKGROUND:A 2012 World Health Organization report recognizes betel nut use as an urgent public health threat faced by the Western Pacific region. However, compared with other addictive substances, little is known about how betel nuts are depicted on social media platforms. In particular, image-based social media platf...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/13954
更新日期:2020-07-09 00:00:00
abstract:BACKGROUND:Electronic devices (eDevices) may have positive or negative influences on family communication and well-being depending on how they are used. OBJECTIVE:We examined eDevice use during family time and its association with the quality of family communication and well-being in Hong Kong Chinese adults. METHODS...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/20529
更新日期:2020-10-14 00:00:00
abstract:BACKGROUND:The massive scale of social media platforms requires an automatic solution for detecting hate speech. These automatic solutions will help reduce the need for manual analysis of content. Most previous literature has cast the hate speech detection problem as a supervised text classification task using classica...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/22609
更新日期:2020-12-08 00:00:00
abstract:BACKGROUND:In many countries, there has been substantial progress in establishing the electronic transmission of patients' health information between health care providers, but little is known about how best to engage patients in the process. OBJECTIVE:We explored patients' views about sharing of electronic health inf...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.1164
更新日期:2009-08-06 00:00:00
abstract:BACKGROUND:Universities have begun deploying public Internet systems that allow for easy search of their experts, expertise, and intellectual networks. Deployed first in biomedical schools but now being implemented more broadly, the initial motivator of these research networking systems was to enable easier identificat...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.3137
更新日期:2014-02-07 00:00:00
abstract:BACKGROUND:Given the substantial improvements in cancer screening and cancer treatment in the United States, millions of adult cancer survivors live for years following their initial cancer diagnosis and treatment. However, latent side effects can occur and some symptoms can be alleviated or managed effectively via cha...
journal_title:Journal of medical Internet research
pub_type: 杂志文章,随机对照试验
doi:10.2196/jmir.3020
更新日期:2014-02-24 00:00:00
abstract:BACKGROUND:The digital revolution has led to a boom in the number of available online health care resources. To navigate these resources successfully, digital literacy education is required. Learners who can evaluate the reliability and validity of online health care information are likely to be more effective at avoid...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/15177
更新日期:2020-02-26 00:00:00
abstract:BACKGROUND:Low-intensity self-guided mental health interventions that are delivered on the web may meet the needs and preferences of adults with mild to moderate symptoms. However, few clinical trials have examined the effectiveness of self-guided transdiagnostic interventions within a naturalistic setting. OBJECTIVE:...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/22698
更新日期:2021-01-22 00:00:00
abstract:BACKGROUND:Adherence to childhood immunization schedules is a function of various factors. Given the increased use of technology as a strategy to increase immunization coverage, it is important to investigate how parents perceive different forms of communication, including traditional means and text-message reminders. ...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/jmir.1976
更新日期:2012-06-06 00:00:00
abstract:BACKGROUND:Three-dimensional scans are increasingly used to quantify biological topographical changes and clinical health outcomes. Traditionally, the use of 3D scans has been limited to specialized centers owing to the high cost of the scanning equipment and the necessity for complex analysis software. Technological a...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/17150
更新日期:2020-11-27 00:00:00
abstract:BACKGROUND:Local and organic foods have shown increased importance and market size in recent years. However, attitudes, sentiment, and habits related to such foods in the context of video social networks have not been thoroughly researched. Given that such media have become some of the most important venues of internet...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/16761
更新日期:2020-08-10 00:00:00
abstract:BACKGROUND:Demand for mental health services, especially for clinical high-risk and early psychosis, has increased, creating a need for new solutions to increase access to and quality of care. Smartphones and mobile technology are potential tools to support coordinated specialty care for early psychosis, given their po...
journal_title:Journal of medical Internet research
pub_type: 杂志文章
doi:10.2196/16393
更新日期:2019-11-12 00:00:00